Insert and manage media

Một phần của tài liệu GIÁO TRÌNH Microsoft powerpoint (Trang 122 - 127)

Embed audio and video clips

There are many ways of communicating information to audiences. PowerPoint is primarily a visual medium through which a presenter displays static information.

However, PowerPoint presentations can also include sound and video.

In addition to the sound effects that are available for slide transitions, you can play audio clips for a specific length of time or throughout an entire slide show. For example, you might include light background music during a slide show that plays repeatedly while an audience is entering the room, emphasize a point by playing a sound clip, or prerecord the audio presentation for each slide. You can insert audio clips from a local source or record them directly in PowerPoint.

If part of the information that you want to convey to your audience is in video form, you can embed that video on a slide instead of having to play it from a different device. This helps to keep your audience focused on your presentation, and simplifies the setup necessary to present the video. You can insert video clips from an online or local source.

You can generate embed codes from online video services

When you insert an audio clip on a slide, a translucent speaker icon appears in the center of the slide. You can move or resize the icon, and hide it during a slide show.

When the speaker icon is selected, PowerPoint displays a Play/Pause button, a prog- ress bar, an elapsed time counter, and a volume control.

To embed an existing audio clip on a slide

1. Save the audio clip on your computer, a connected drive, or a network-connected location.

2. On the Insert tab, in the Media group, click the Audio button, and then click Audio on My PC.

3. In the Insert Audio dialog box, browse to the audio file location, click the audio file or thumbnail, and then click Insert.

To record and embed an audio clip

1. On the Insert tab, in the Media group, click the Audio button, and then click Record Audio.

2. In the Record Sound dialog box, enter a name for the audio clip, and then click the Record button (the red dot).

3. Deliver the audio content that you want to record, and when you finish, click the Stop button (the blue square).

You can rename the clip before or after recording it

4. Do any of the following:

● Click the Play button to play back the audio clip.

● Click the Record button to re-record the audio clip.

● Click Cancel to close the dialog box without saving the audio clip.

● Click OK to embed the recorded audio on the slide.

When not selected, the audio icon can be difficult to see against a busy slide background

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To insert a local video clip 1. Do either of the following:

● In a content placeholder, click the Insert Video button. Then in the Insert Video window, click From a file.

● On the Insert tab, in the Media group, click the Video button, and then click Video on My PC.

2. In the Insert Video window, browse to the video location, click the video file or thumbnail, and click Insert.

To insert an online video clip

➜ Do either of the following:

● In a content placeholder, click the Insert Video button.

● On the Insert tab, in the Media group, click the Video button, and then click Online Video.

● In the Insert Video window, click the video source. Then browse to the video location, click the video file or thumbnail, and click Insert.

Modify audio and video clips

You can configure audio to play automatically, to play for a specific amount of time, or to loop continuously during a specific slide or the entire presentation. You can fade gradually into and out of an audio clip. You can also trim the audio clip to play only a specific portion of it.

Specify the points in an audio or video clip that you want to start and finish playback

After you insert a video clip, you can resize the window it appears in, or even crop the area of the video that is displayed. By default, a video clip plays within its window, but you can configure it to play at full-screen size. You can also configure most of the same playback options for video clips that you can for audio clips, and you can apply the standard picture styles to the video window.

It isn’t necessary to edit audio or video prior to inserting it in a presentation. You can trim audio and video clips in much the same way that you can format the appearance of a picture: although the audience hears or sees only what you select, the original media is unaltered.

To modify the appearance of a selected audio icon or video window

➜ On the Format tool tab, in the Adjust, Picture Styles, or Video Styles group, configure the formatting options you want.

To trim an audio or video clip

1. On the Playback tool tab, click the Trim Audio or Trim Video button.

2. In the Trim Audio or Trim Video dialog box, drag the Start and End sliders, or set the Start Time and End Time.

3. Preview the results and make adjustments as necessary, and then click OK to apply the trim.

To transition into or out of an audio or video clip

➜ On the Playback tool tab, in the Editing group, set the Fade In and Fade Out times.

To configure the playback options for an audio clip

➜ On the Playback tool tab, in the Audio Options group, do any of the following:

● Click Volume, and then click Low, Medium, High, or Mute.

● In the Start list, click On Click or Automatically.

● Select the Play Across Slides check box to continue playing the clip when the next slide is displayed.

● Select the Loop until Stopped check box to automatically restart the clip when it ends.

● Select the Hide During Show check box to hide the audio icon when the slide is shown.

● Select the Rewind after Playing check box to automatically return to the beginning of the clip when it finishes.

➜ On the Playback tool tab, in the Audio Styles group, click the Play in Background button to set the audio options necessary to play the clip continuously from the slide on which it starts until the presentation ends or the clip is stopped.

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To configure the playback options for a video clip

➜ On the Playback tool tab, in the Video Options group, do any of the following:

● Click Volume, and then click Low, Medium, High, or Mute.

● In the Start list, click On Click or Automatically.

● Select the Play Full Screen check box to expand the video to full-screen size while it is playing.

● Select the Hide While Not Playing check box to hide the video window after the video ends.

● Select the Loop until Stopped check box to automatically restart the clip when it ends.

● Select the Rewind after Playing check box to automatically return to the beginning of the clip when it finishes.

To resize a video window

➜ Drag the window sizing handles.

➜ On the Format tool tab, in the Size group, set the Video Height or Video Width, and then press Enter.

➜ On the Format tool tab, click the Size dialog box launcher. In the Format Video pane, configure the height, width, rotation, scale, and aspect ratio settings.

To crop a video window

1. On the Format tool tab, in the Size group, click the Crop button.

2. Drag the crop handles to frame the portion of the video window that you want to display.

Tip Drag the crop frame to move it to a different part of the video window.

3. Click the Crop button again to apply the changes.

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